S-93031A119 M16 DIN 439B, ISO 4035 Hex Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments due to 316 stainless steel construction
• Reliable left-hand thread engagement for specialized applications requiring reverse-direction security
• Space-saving thin profile design enables use in compact assemblies without compromising strength
• Precision Class 6H thread fit ensures consistent mating and vibration resistance
• Metric coarse threading (M16x2mm) provides quick assembly and reduced cross-threading risk
• Standard-compliant manufacturing per DIN 439B and ISO 4035 guarantees dimensional accuracy
• Environmental regulation compliance with RoHS 3 and REACH supports sustainable procurement

Professional Applications & Engineering Value

This left-hand thread metric nut addresses critical safety and operational needs in rotating machinery, conveyor systems, and precision equipment where standard right-hand threads would loosen under counter-clockwise motion. The 316 stainless steel material delivers exceptional corrosion resistance against chemicals, saltwater, and industrial atmospheres, significantly extending service life in demanding applications. The thin hex nut profile (8mm height) provides space optimization in tightly engineered assemblies while maintaining full external hex drive functionality for standard wrenching. Manufactured to DIN 439B and ISO 4035 specifications, this M16 coarse thread fastener ensures reliable performance in maintenance-sensitive environments where left-hand threading is essential for operational safety.

Specification Summary & Compliance

This thin hex nut features M16x2mm left-hand metric coarse threads with Class 6H thread fit tolerance, 24mm width across flats, and 8mm height per DIN 439B and ISO 4035 dimensional standards. The product maintains full compliance with RoHS 3 (2015/863/EU) including exemption 6(a) for lead as steel alloying element and REACH (EC 1907/2006) regulations regarding SVHC substances.